But when people comment about all the ways how the PC could get better mechanically without ever explaining why it would help them thematically, that's why I made my comment. In your case in particular for instance of the level of Hexblade... I can't help but wonder how the character's essence of being a high elf swashbuckler becomes better by switching over to half-elf and using CHA rather than DEX for combat? Obviously switching High to Half is purely mechanical... you're doing it for the bonus to CHA... and now you also have a Hexblade's Curse for additional damage, higher crit range and healing yourself when you kill someone? Even if you try and reskin it away from some sort of magic... how do any of that (attacking with CHA, healing after killing someone, not to mention now actually having spellcasting) make the character more of a swashbuckler? I dunno... in my opinion it doesn't enhance the rogue swashbuckler flavor concept at all. So to me... yes, it just seems to be a bid for mechanical enhancement only.